Chelsea
Is Chelsea tap water safe to drink?
Mostly yes — Chelsea scores 95/100. This report aggregates EPA drinking water data across 2 local systems in Chelsea. We found 40 total violations (24 unresolved).
Real-Time Environment
Live: 11:00 AM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Chelsea.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Chelsea?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Filtration technologies matched to Chelsea contaminant records.
Baby Formula Safety
Guidance on preparing infant formula using municipal tap water in Chelsea.
Homebuyer's Perspective
Municipal water quality in Chelsea directly influences pipe corrosion rates and home filtration needs. The high safety score (95/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Residents should monitor Lead (90th percentile) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Chelsea
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Chelsea.
Frequently Asked Questions
Is Chelsea tap water safe to drink?
Mostly yes — Chelsea scores 95/100.
How many water systems serve Chelsea?
Chelsea is served by 2 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Chelsea?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Chelsea.
What is the water quality score for Chelsea?
The water quality score for Chelsea is 95 out of 100, based on EPA contaminant data, violation history, and testing results across the 2 systems serving the city.
What are the top contaminants in Chelsea?
The top contaminants detected in Chelsea include Lead (90th percentile). View detailed information on our contaminants page.
Chelsea Water Quality Summary
Chelsea, MA receives a water quality score of 95/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.
Chelsea's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.
Chelsea's score of 95 is 21 points above the Massachusetts state average of 74, and above the nationwide average of roughly 78/100 across all U.S. states.
Homebuyers considering a move to Chelsea will find that this major metro area in Massachusetts boasts exceptionally high water quality marks, providing regulatory reliability to incoming residents. The local supply is managed across separate systems, successfully delivering clean water despite the challenges of the Northeast's dense, older urban infrastructure. This strong performance shows that this coastal community's utility systems are highly reliable, making tap water safety one less thing for prospective homeowners to worry about.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Massachusetts water quality rankings report →
Key Contaminants
Join the Chelsea updates waitlist
We are developing email updates. This form records your interest; automated violation and boil-water advisory emails are not active.
We will use your address to contact you if updates become available. See our Privacy Policy.
Water Systems Serving Chelsea (2)
Check Your Specific Address
Water quality can vary by neighborhood in Chelsea.
Related
Quick compare in Massachusetts
Compare Chelsea water quality: View all states · Contaminant library · How we score water quality